Tube structure for telescope



FIG. 1 is a perspective view of a tube structure for telescope showing my new design, it being understood that structures shown with broken lines throughout the figures are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a perspective view thereof without broken lines;

FIG. 3 is a right side view thereof, it being understood that the opposite side is a mirror image thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a tube structure for telescope, as shown and described. 